OK, now a bonus question: what is the minimum number of moves needed to checkmate the opponent's King in a King and two Queens vs King endgame, with only the mentioned pieces on the board, in a position best for the lone King?

In case anybody didn't notice, I will post the question asked earlier in the topic: what's the minimum number of moves for checkmate in a King and two Queens versus King endgame, assuming the side with two Queens is in the worst possible position?

OK, now a bonus question: what is the minimum number of moves needed to checkmate the opponent's King in a King and two Queens vs King endgame, with only the mentioned pieces on the board, in a position best for the lone King?

P.S. I don't know the answer to this one, but if you know, go ahead!

I think the answer is 4, as shown in this game below. Most other placements lead to mates in 3 or 2. The interesting thing is, if you put the white king on g2 instead of h1, it becomes a mate in 3!

OK, now a bonus question: what is the minimum number of moves needed to checkmate the opponent's King in a King and two Queens vs King endgame, with only the mentioned pieces on the board, in a position best for the lone King?

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